Update cgroups to 4be134fe43b9e207558365ad2675546b

Signed-off-by: Michael Crosby <crosbymichael@gmail.com>

vendor/github.com/containerd/cgroups/cgroup.go

@@ -166,7 +166,10 @@ func (c *cgroup) Stat(handlers ...ErrorHandler) (*Metrics, error) {
 	}
 	var (
 		stats = &Metrics{
-			Cpu: &CpuStat{},
+			Cpu: &CpuStat{
+				Throttling: &Throttle{},
+				Usage:      &CpuUsage{},
+			},
 		}
 		wg   = &sync.WaitGroup{}
 		errs = make(chan error, len(c.subsystems))

vendor/github.com/containerd/cgroups/memory.go

@@ -87,7 +87,12 @@ func (m *memoryController) Stat(path string, stats *Metrics) error {
 		return err
 	}
 	defer f.Close()
-	stats.Memory = &MemoryStat{}
+	stats.Memory = &MemoryStat{
+		Usage:     &MemoryEntry{},
+		Swap:      &MemoryEntry{},
+		Kernel:    &MemoryEntry{},
+		KernelTcp: &MemoryEntry{},
+	}
 	if err := m.parseStats(f, stats.Memory); err != nil {
 		return err
 	}